Datasheets

MIC2194 Micrel MIC2194400kHz SO-8 Buck Control IC General Description Features MicrelвЂ™s MIC2194 is a high efficiency PWM buck control IChoused in the SO-8 package. Its 2.9V to 14V input voltagerange allows it to efficiently step down voltages in 3.3V, 5V,and 12V systems as well as 1-or 2-cell Li Ion battery poweredapplications. The flexible architecture of the MIC2194 allowsfor it to be configured as a buck or a buck-boost converter.The MIC2194 solution saves valuable board space. Thedevice is housed in the space-saving SO-8 package, whoselow pin-count minimizes external components. Its 400kHzPWM operation allows a small inductor and small outputcapacitors to be used. The MIC2194 can implement allceramic capacitor solutions.The MIC2194 drives a high-side P-channel MOSFET. A lowoutput driver impedance of 2в„¦ allows the MIC2194 to drivelarge external MOSFETs to generate a wide range of outputcurrents. The MIC2194 can achieve maximum duty cycles of100%, which can be useful in low headroom applications.The MIC2194 is available in an 8 pin SOIC package with ajunction temperature range of вЂ“40В°C to +125В°C. 2.9V to 14V input voltage range400kHz oscillator frequencyPWM current mode control2в„¦ output drivers100% maximum duty cycle …

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